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when i switch between two page with ctrl+tab button occured this exception : java.lang.IllegalStateException: [Winsys] TopComponent org.netbeans.core.multiview.MultiViewCloneableTopComponent throws runtime exception from its componentHidden() method. Please repair it! at org.openide.windows.WindowManager.logThrowable(WindowManager.java:361) at org.openide.windows.WindowManager.componentHidden(WindowManager.java:345) at org.netbeans.core.windows.WindowManagerImpl.componentHidden(WindowManagerImpl.java:1030) at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:491) at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:269) at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:245) at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:183) at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:123) at org.netbeans.core.windows.Central.activateModeTopComponent(Central.java:1697) at org.netbeans.core.windows.WindowManagerImpl.topComponentRequestActive(WindowManagerImpl.java:1126) at org.openide.windows.TopComponent.requestActive(TopComponent.java:709) at org.netbeans.core.windows.actions.RecentViewListAction.actionPerformed(RecentViewListAction.java:129) at org.netbeans.core.windows.view.ui.KeyboardPopupSwitcher.processInterruption(KeyboardPopupSwitcher.java:303) at org.netbeans.core.windows.view.ui.KeyboardPopupSwitcher.processShortcut(KeyboardPopupSwitcher.java:167) at org.netbeans.core.windows.ShortcutAndMenuKeyEventProcessor.dispatchKeyEvent(ShortcutAndMenuKeyEventProcessor.java:271) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:955) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:834) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:661) at java.awt.Component.dispatchEventImpl(Component.java:4282) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121) java.lang.OutOfMemoryError: Java heap space
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system says: "org.netbeans.core.multiview.MultiViewCloneableTopComponent throws runtime exception from its componentHidden() method." so I'm passing to multiview, but actual error may be in some other code, I don't know why guilty code is not shown in exception. Reporter, could you please attach steps for reproduction, if you can reproduce this issue? It should be connected to the type of document you are switching to or from.
it's outofmemory error (see the bottom of the stack trace), so i don't suppose it's a fault in window system
No reaction from reporter for a long time, so I'm closing, not enough info to do anything. Reporter, feel free to reopen with requested information, thanks.